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Unformatted text preview: 1 Beer Beer Charlie Bamforth Charlie Bamforth SAS 30 Mushrooms, Molds, and Society Saccharomyces cerevisiae What is beer? an alcoholic beverage usually made from malted cereal grain (as barley), flavored with hops, and brewed by slow fermentation Merriam-Webster Dictionary ALCOHOLIC BEVERAGES ALCOHOLIC BEVERAGES ¡ The proceeds of The proceeds of alcoholic fermentation alcoholic fermentation by yeast by yeast ¡ C 6 H 12 12 O 6 → 2 C 2 C 2 H 5 OH OH Sugar Ethanol* Carbon dioxide *a.k.a. ethyl alcohol, “alcohol” + 2 CO 2 ALCOHOLIC BEVERAGES ALCOHOLIC BEVERAGES ¡ Sugars from grapes Sugars from grapes are fermented to are fermented to produce produce wine wine ¡ Sugars from Sugars from grain grain are fermented to are fermented to produce produce beer beer The basic four ingredients of The basic four ingredients of most brewing processes most brewing processes ¡ Malted barley Malted barley ¡ Hops Hops ¡ Yeast Yeast ¡ Water Water And according to the Reinheitsgebot of 1516 these are the only ingredients allowed in German beer 2...
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- Fall '08
- alcoholic beverages, Brewing, Saccharomyces cerevisiae